Combined filter and hydraulic press.



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H T I .M S A M COMBINED FILTER AND HYDRAULIC PRESS. APPLICATION FILED AUG. 10, 1903. RENEWED JUNE 22, 1907.

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WI TNE SSE S M. A. SMITH.

COMBINED FILTER AND HYDRAULIC APPLICATION FILED AUG. 10. 1903. REI IEW PATENTED MAR 3, 1908.

PRESS. I X ED JUNE 2, .1907.

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MW 58.- ('1. v 0' A HORNE y UNITED STATES MYRON A. SMITH, OF NEW YORK, N. Y.

COMBINED FILTER AND HYDRAULIC PRESS.

Specification of Letters Patent.

Patented March 3, 1908.

Application filed August 10 1903. Serial No. 168.881. Renewed June 22'. 1907. Serial No. 380243.

To all whom it may concern.-

Be it known that I, MYRON A. SMITH, a citizen of the United States of America, and resident of the city, county, and State of New York, have invented certain new and useful Improvements in Combined Filter and Hydraulic Presses, of which the following is a specification.

My invention relates especially to means and mechanism employed for separating cocoa butter from the solid particles of cocoa, and for similar or kindred uses, and has for its object the provision of a combined filter and hydraulic press wherein the material is not only subjected to filtration, but to hydraulic pressure without intermediate handling of the material treated, or of the receptacles holding the same.

To attain the desired end my invention consists in a combined filter and hydraulic press in which is comprised a supporting frame; a series of pairs of rings mounted therein, each pair of rings carrying filter cloths; heads between each pair of pairs of rings; movable separating pieces between each pair of pairs of rings; a conduit for material to be treated leading to the space between the filter cloths, and a hydraulic plunger. And my invention also involves certain other novel and useful combinations or arrangements of parts, and peculiarities of con struction and operation, all of which will he hereinafter first fully described, and then pointed out in the claims.

In the accompanying drawings forming a part hereof, Figure 1 is a plan view of a combined filter and hydraulic press embodying my invention. Fig. 2 is a vertical, axial, sec tional view thereof at line aaof Fig. 1. Fig. 3 is a crosssectional view at line w-0c of Fig. 2, looking from the right, the preceding rings being removed. Fig. 4 is a vertical sectional view at line 0-0 of Fig. 3.

Like numerals of reference, wherever they occur, indicate corresponding parts in all the figures.

1 are the horizontal side pieces of the main frame, connected at one end to a pumping head 2, having a central conduit 3 therethrough. 4 is a valve stem for closing said conduit.

5 is a hydraulic head to which the opposite end of the side pieces 1 are connected.

6 is a hydraulic plunger or piston within the head 5.

12 are guide wheels carried by the pluner 6. j 7 is a water supply pipe leading to the chamber within the head 5.

8 is a chain connected to suitable mechanism for drawing the plunger 6 back into the head 5.

9 are supporting legs.

10 is a pan for the reception of cocoa butter, or the equivalentpassing from the press, and 11 are heating pipes beneath the pan 10.

12 are interlocking rings made substantially in accordance withLetters Patent of the United States No. 707,029 issued to me Aug. 12, 1902 for filter and hydraulic press member.

13 are filter cloths held at their edges between each pair ofrings 12. The cloths 13 are perforated at their centers and provided with flanged rings 14.

15 are distending springs.

16 is a plate having passages 17, and 18 therein as indicated in Figs. 3 and 4 of the drawing, and transverse perforations 19 communicating therewith. Secured to each side of plate 16 .is a head or plunger 20. At the perimeter of the head 20 is a ring 21, its outer face being at a right angle to its aXis, and its inner face curved so as not to present an abrupt, cutting angle to the filter cloth with which it comes in-contact. The head 20 has a central perforation 22 corresponding to the ring 14 of a filter cloth, and at the side of the perforation 22 a finger 23 arranged to support a ring 14, insuring accurate registering of the parts. I

24 is a packing gasket fixed in the head 20, and arranged to bear against the flange upon the filter cloth ring 14.

The face of each head 20 is provided with conducting channels or grooves 25 leading to the perforations 19 communicating with the passages 17 and 18, as particularly illustrated in Fig. 3 of the drawing. For convenience in manufacture I have shown heads 20 connected to a central plate 16, but it is obvious such plate and heads might be made integral without departing from the spirit of my invention.

At each side of the main frame, parallel with the pieces 1, are journaled eccentric bars 26 each provided with a gear 27 arranged to be operated by a worm 28 upon a shaft 29, each shaft 29 bearing a miter gear 30.

until such pressure is inadequate to i remove any more butter, when t'he'valve stem- 4 is turned, cutting offcommunication between the pump and press. By now turning the handle 31 the separatingpieces 32are withdrawn, and. then by applying hydraulic pressure tothe plunger 6 the heads 20' are forcedinto-the rings 12, expressing the but-' ter still remaining in the-mass between the filter cloths.

with much handling of the material treated, saving time and expense.

Having now fully described-my invention, what I claim as new therein, and desire to secure by Letters Patent, is:

1. In a combined filter and hydraulic press, the COIIlblIlatlOID with filtering receptacles and a plunger, of movable-separating pieces.

2; A. combined filter and hydraulic press in which is comprised a supporting frame; a series of pairsof ringsmounted therein each pair of: rings carryingfilter cloths;

heads-between each pair of pairs of rings movable separating pieces between. each pair-of pairs of rings; a conduit for material.

to be treated leading to the spaces between the filter cloths, and a hydraulic plunger, the whole combined and arran ed to operate substantially as shown and: r escribed.

3. In a device of the character herein specified, the combination with a filter cloth havin a perforation. through its center encirc ed by a ring, of a perforated movable head, having a finger projecting from the side of said perforation adapted and arranged to engage the filter cloth ring, substantially as shown and described.

4. In a device of the character herein specified, the combination with a. movable It will thus be seen that I provide a device acting first asa filter press, and then as a hydraulic press, doing away headhaving a central perforation, a packin gasket fitting around said perforation, an a central filter-cloth support, of a filtercloth resting against said head, substantially as shownand described.

5. In a device of the character herein specified, the combination with the rings carrying filter cloths of heads or plungers, arranged to enter said rings, and movable separating pieces for interposing between each pair of pairsof rings;

6. In: a device of the character herein specified, the combination .with the rings carrying filter cloths, of heads arranged to enter said rings; movable separating pieces for interposing between each pair of pairs of rings, and means for moving said separating pieces.

7 In a device of the character herein specified, the combinationwith' a plate from which a head extends into a ring carrying a filter cloth, of a separating piece pivoted to said plate, substantially as shown and described.

8: In a device of the character herein specified, the combinationwith heads entering rings carrying filter cloths, of filter cloths, rings carrying said cloths, separating pieces connected to said heads, and means for simultaneouslywithdrawing said separating' pieces.

9. In a device of the character herein specified, thecombinationwith a ring carrying a filtercloth, of a head or plunger-adapted to entersaid ring, such head having a rim, the outer face whereof is parallel with the axis of the head, the'inner face being curved, substantially as and for the use and purpose shown and described.

10. The combination with'a plate from which a head. extends, of a filtering ring, a filter cloth, and movable means for separating thehead and filtering ring. I

11. In a combined filter and hydraulic press, the combination with a filtering receptacle and plunger, of movable means for separating said filtering'receptacle and plun- 'er.

b Signed by me at New York city, this 1st day of August, 1903.

MYRON A. SMITH.

Witnesses:

A. M. PIERCE, CLARA SOHENK. 

